You are going to be ok!
Suicide is never the answer, to anything, and even if you were pregnant, there will be many more people who support you than you might imagine!
There can be many reasons why you are late besides pregnancy, sometimes its just stress related, or other causes.
Technically, you can get pregnant if there was sperm on his penis and it was rubbed on your vagina and somehow got inside - but that is very very unlikely.
For the most part, he has to physically be inside you, when he comes, and that has to be on or a near your ovulation date in order for you to get pregnant.
You'll be fine!
Nikki, I'm not sure what's causing your period to be late, but I'd guess stress.
If you didn't have sex, you can't be pregnant. To get pregnant, you need sperm AND a lot of semen deposited in your vagina - even if you had a couple random sperm outside your vagina, they would die without semen to create the proper Ph for them to swim around in and live.